Home / 188,002.86-259,457.64-107,428.56

Finding the Fourth Proportional to 188,002.86, 259,457.64 and 107,428.56

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Solution

The fourth proportional to 188,002.86, 259,457.64 and 107,428.56 is: 148,259.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,002.86 : 259,457.64 = 107,428.56 : x
  2. Step 2: Convert to fraction form
    188,002.86/259,457.64 = 107,428.56/x
  3. Step 3: Cross multiply
    188,002.86x = 259,457.64 × 107,428.56
  4. Step 4: Simplify right side
    188,002.86x = 27,873,160,646.20
  5. Step 5: Solve for x
    x = 27,873,160,646.20/188,002.86
  6. Step 6: Final answer
    x = 148,259.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.